While Himuro and Fuyutsuki are now a happy couple, blizzards abound when Himuro spots Fuyutsuki out shopping with another man! And not just any man, but her former coworker from overseas who has been transferred to their office and happens to be the descendant of a succubus! This man, Sakuba, and Fuyutsuki seem to be close enough that he has no reservations about calling Fuyutsuki by her first name! Will Himuro be able to stand the heat as his heart burns hot enough with jealousy to melt snow?